From 47a79f657ef6b12b903cf6322dc78b5b93a50029 Mon Sep 17 00:00:00 2001 From: Masahiro Yamada Date: Wed, 14 Sep 2016 01:06:00 +0900 Subject: usb: uniphier: remove UniPhier xHCI driver and select DM_USB This driver has not been converted to Driver Model, and it is an obstacle to migrate other block device drivers. Remove it for now. The UniPhier SoCs already use a DM-based EHCI driver, so now ARCH_UNIPHIER can select DM_USB. These two changes must be done atomically because removing the legacy driver causes a build error. Signed-off-by: Masahiro Yamada Reviewed-by: Marek Vasut --- drivers/usb/host/Kconfig | 7 ---- drivers/usb/host/Makefile | 1 - drivers/usb/host/xhci-uniphier.c | 85 ---------------------------------------- 3 files changed, 93 deletions(-) delete mode 100644 drivers/usb/host/xhci-uniphier.c (limited to 'drivers/usb') diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig index e0699d4..42e8a9f 100644 --- a/drivers/usb/host/Kconfig +++ b/drivers/usb/host/Kconfig @@ -15,13 +15,6 @@ config USB_XHCI_HCD if USB_XHCI_HCD -config USB_XHCI_UNIPHIER - bool "Support for UniPhier on-chip xHCI USB controller" - depends on ARCH_UNIPHIER - default y - ---help--- - Enables support for the on-chip xHCI controller on UniPhier SoCs. - config USB_XHCI_DWC3 bool "DesignWare USB3 DRD Core Support" help diff --git a/drivers/usb/host/Makefile b/drivers/usb/host/Makefile index 620d114..55190bb 100644 --- a/drivers/usb/host/Makefile +++ b/drivers/usb/host/Makefile @@ -62,7 +62,6 @@ obj-$(CONFIG_USB_XHCI_EXYNOS) += xhci-exynos5.o obj-$(CONFIG_USB_XHCI_FSL) += xhci-fsl.o obj-$(CONFIG_USB_XHCI_OMAP) += xhci-omap.o obj-$(CONFIG_USB_XHCI_PCI) += xhci-pci.o -obj-$(CONFIG_USB_XHCI_UNIPHIER) += xhci-uniphier.o # designware obj-$(CONFIG_USB_DWC2) += dwc2.o diff --git a/drivers/usb/host/xhci-uniphier.c b/drivers/usb/host/xhci-uniphier.c deleted file mode 100644 index 1b3f3d2..0000000 --- a/drivers/usb/host/xhci-uniphier.c +++ /dev/null @@ -1,85 +0,0 @@ -/* - * Copyright (C) 2015 Masahiro Yamada - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -#include -#include -#include -#include -#include -#include "xhci.h" - -static int get_uniphier_xhci_base(int index, struct xhci_hccr **base) -{ - DECLARE_GLOBAL_DATA_PTR; - int node_list[2]; - fdt_addr_t addr; - int count; - - count = fdtdec_find_aliases_for_id(gd->fdt_blob, "usb", - COMPAT_SOCIONEXT_XHCI, node_list, - ARRAY_SIZE(node_list)); - - if (index >= count) - return -ENODEV; - - addr = fdtdec_get_addr(gd->fdt_blob, node_list[index], "reg"); - if (addr == FDT_ADDR_T_NONE) - return -ENODEV; - - *base = (struct xhci_hccr *)addr; - - return 0; -} - -#define USB3_RST_CTRL 0x00100040 -#define IOMMU_RST_N (1 << 5) -#define LINK_RST_N (1 << 4) - -static void uniphier_xhci_reset(void __iomem *base, int on) -{ - u32 tmp; - - tmp = readl(base + USB3_RST_CTRL); - - if (on) - tmp &= ~(IOMMU_RST_N | LINK_RST_N); - else - tmp |= IOMMU_RST_N | LINK_RST_N; - - writel(tmp, base + USB3_RST_CTRL); -} - -int xhci_hcd_init(int index, struct xhci_hccr **hccr, struct xhci_hcor **hcor) -{ - int ret; - struct xhci_hccr *cr; - struct xhci_hcor *or; - - ret = get_uniphier_xhci_base(index, &cr); - if (ret < 0) - return ret; - - uniphier_xhci_reset(cr, 0); - - or = (void *)cr + HC_LENGTH(xhci_readl(&cr->cr_capbase)); - - *hccr = cr; - *hcor = or; - - return 0; -} - -void xhci_hcd_stop(int index) -{ - int ret; - struct xhci_hccr *cr; - - ret = get_uniphier_xhci_base(index, &cr); - if (ret < 0) - return; - - uniphier_xhci_reset(cr, 1); -} -- cgit v1.1